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Home >> Porsche >> 2017 >> Macan GTS >> Repair and Diagnosis >> External Pages >> Different car >> Section 657 (Evaporative Emissions - V6 S/C 3.0L Petrol -- Discovery/L462) >> Evaporative Emissions - V6 S/C 3.0L Petrol >> Diagnosis And Testing >> Diagnostic Routine

Diagnostic Routine

WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • The Evaporative System Diagnostic Check routine will not run if the battery state of charge is too low. To proceed, connect the manufacturer approved Vehicle Battery Conditioner/Power Supply.
  • The Evaporative System Diagnostic Check routine will not run if the fuel level is too low (<15%). To proceed, add the correct grade of fuel as necessary.

The Evaporative System Diagnostic Check routine will initially measure the reference current drawn by the diagnostic module tank leakage pump, and then energise the changeover valve to pressurise the fuel tank. The combustible gas detector is then used to identify the source of a leak. The routine takes approximately 10 minutes and may be performed up to 3 times to allow time to test the entire fuel system.

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